/*
* $Id: FieldChecks.java 471754 2006-11-06 14:55:09Z husted $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.struts.validator;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.validator.Field;
import org.apache.commons.validator.GenericTypeValidator;
import org.apache.commons.validator.GenericValidator;
import org.apache.commons.validator.UrlValidator;
import org.apache.commons.validator.Validator;
import org.apache.commons.validator.ValidatorAction;
import org.apache.commons.validator.util.ValidatorUtils;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.util.MessageResources;
import org.apache.struts.util.RequestUtils;
import javax.servlet.http.HttpServletRequest;
import java.io.Serializable;
import java.util.Locale;
import java.util.StringTokenizer;
/**
* <p> This class contains the default validations that are used in the
* validator-rules.xml file. </p> <p> In general passing in a null or blank
* will return a null Object or a false boolean. However, nulls and blanks do
* not result in an error being added to the errors. </p>
*
* @since Struts 1.1
*/
public class FieldChecks implements Serializable {
/**
* Commons Logging instance.
*/
private static final Log log = LogFactory.getLog(FieldChecks.class);
/**
* The message resources for this package.
*/
private static MessageResources sysmsgs =
MessageResources.getMessageResources(
"org.apache.struts.validator.LocalStrings");
public static final String FIELD_TEST_NULL = "NULL";
public static final String FIELD_TEST_NOTNULL = "NOTNULL";
public static final String FIELD_TEST_EQUAL = "EQUAL";
/**
* Checks if the field isn't null and length of the field is greater than
* zero not including whitespace.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if meets stated requirements, false otherwise.
*/
public static boolean validateRequired(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
} else {
return true;
}
}
/**
* Checks if the field isn't null based on the values of other fields.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if meets stated requirements, false otherwise.
*/
public static boolean validateRequiredIf(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object form =
validator.getParameterValue(org.apache.commons.validator.Validator.BEAN_PARAM);
String value = null;
boolean required = false;
value = evaluateBean(bean, field);
int i = 0;
String fieldJoin = "AND";
if (!GenericValidator.isBlankOrNull(field.getVarValue("fieldJoin"))) {
fieldJoin = field.getVarValue("fieldJoin");
}
if (fieldJoin.equalsIgnoreCase("AND")) {
required = true;
}
while (!GenericValidator.isBlankOrNull(field.getVarValue("field[" + i
+ "]"))) {
String dependProp = field.getVarValue("field[" + i + "]");
String dependTest = field.getVarValue("fieldTest[" + i + "]");
String dependTestValue = field.getVarValue("fieldValue[" + i + "]");
String dependIndexed = field.getVarValue("fieldIndexed[" + i + "]");
if (dependIndexed == null) {
dependIndexed = "false";
}
String dependVal = null;
boolean thisRequired = false;
if (field.isIndexed() && dependIndexed.equalsIgnoreCase("true")) {
String key = field.getKey();
if ((key.indexOf("[") > -1) && (key.indexOf("]") > -1)) {
String ind = key.substring(0, key.indexOf(".") + 1);
dependProp = ind + dependProp;
}
}
dependVal = ValidatorUtils.getValueAsString(form, dependProp);
if (dependTest.equals(FIELD_TEST_NULL)) {
if ((dependVal != null) && (dependVal.length() > 0)) {
thisRequired = false;
} else {
thisRequired = true;
}
}
if (dependTest.equals(FIELD_TEST_NOTNULL)) {
if ((dependVal != null) && (dependVal.length() > 0)) {
thisRequired = true;
} else {
thisRequired = false;
}
}
if (dependTest.equals(FIELD_TEST_EQUAL)) {
thisRequired = dependTestValue.equalsIgnoreCase(dependVal);
}
if (fieldJoin.equalsIgnoreCase("AND")) {
required = required && thisRequired;
} else {
required = required || thisRequired;
}
i++;
}
if (required) {
if (GenericValidator.isBlankOrNull(value)) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
} else {
return true;
}
}
return true;
}
/**
* Checks if the field matches the regular expression in the field's mask
* attribute.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if field matches mask, false otherwise.
*/
public static boolean validateMask(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
try {
String mask =
Resources.getVarValue("mask", field, validator, request, true);
if (value != null && value.length()>0
&& !GenericValidator.matchRegexp(value, mask)) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
} else {
return true;
}
} catch (Exception e) {
processFailure(errors, field, "mask", e);
return false;
}
}
/**
* Checks if the field can safely be converted to a byte primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateByte(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
result = GenericTypeValidator.formatByte(value);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to a byte primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateByteLocale(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
Locale locale = RequestUtils.getUserLocale(request, null);
result = GenericTypeValidator.formatByte(value, locale);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* @param bean
* @param field
* @return
*/
private static String evaluateBean(Object bean, Field field) {
String value;
if (isString(bean)) {
value = (String) bean;
} else {
value = ValidatorUtils.getValueAsString(bean, field.getProperty());
}
return value;
}
/**
* Checks if the field can safely be converted to a short primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateShort(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
result = GenericTypeValidator.formatShort(value);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to a short primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateShortLocale(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
Locale locale = RequestUtils.getUserLocale(request, null);
result = GenericTypeValidator.formatShort(value, locale);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to an int primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateInteger(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
result = GenericTypeValidator.formatInt(value);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to an int primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateIntegerLocale(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
Locale locale = RequestUtils.getUserLocale(request, null);
result = GenericTypeValidator.formatInt(value, locale);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to a long primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateLong(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
result = GenericTypeValidator.formatLong(value);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to a long primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateLongLocale(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
Locale locale = RequestUtils.getUserLocale(request, null);
result = GenericTypeValidator.formatLong(value, locale);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to a float primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateFloat(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
result = GenericTypeValidator.formatFloat(value);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to a float primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateFloatLocale(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
Locale locale = RequestUtils.getUserLocale(request, null);
result = GenericTypeValidator.formatFloat(value, locale);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to a double primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateDouble(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
result = GenericTypeValidator.formatDouble(value);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field can safely be converted to a double primitive.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateDoubleLocale(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
Locale locale = RequestUtils.getUserLocale(request, null);
result = GenericTypeValidator.formatDouble(value, locale);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if the field is a valid date. If the field has a datePattern
* variable, that will be used to format <code>java.text.SimpleDateFormat</code>.
* If the field has a datePatternStrict variable, that will be used to
* format <code>java.text.SimpleDateFormat</code> and the length will be
* checked so '2/12/1999' will not pass validation with the format
* 'MM/dd/yyyy' because the month isn't two digits. If no datePattern
* variable is specified, then the field gets the DateFormat.SHORT format
* for the locale. The setLenient method is set to <code>false</code> for
* all variations.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateDate(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
boolean isStrict = false;
String datePattern =
Resources.getVarValue("datePattern", field, validator, request,
false);
if (GenericValidator.isBlankOrNull(datePattern)) {
datePattern =
Resources.getVarValue("datePatternStrict", field, validator,
request, false);
if (!GenericValidator.isBlankOrNull(datePattern)) {
isStrict = true;
}
}
Locale locale = RequestUtils.getUserLocale(request, null);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
try {
if (GenericValidator.isBlankOrNull(datePattern)) {
result = GenericTypeValidator.formatDate(value, locale);
} else {
result =
GenericTypeValidator.formatDate(value, datePattern, isStrict);
}
} catch (Exception e) {
log.error(e.getMessage(), e);
}
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if a fields value is within a range (min & max specified in
* the vars attribute).
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return True if in range, false otherwise.
*/
public static boolean validateLongRange(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
if (!GenericValidator.isBlankOrNull(value)) {
try {
String minVar =
Resources.getVarValue("min", field, validator, request, true);
String maxVar =
Resources.getVarValue("max", field, validator, request, true);
long longValue = Long.parseLong(value);
long min = Long.parseLong(minVar);
long max = Long.parseLong(maxVar);
if (min > max) {
throw new IllegalArgumentException(sysmsgs.getMessage(
"invalid.range", minVar, maxVar));
}
if (!GenericValidator.isInRange(longValue, min, max)) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
}
} catch (Exception e) {
processFailure(errors, field, "longRange", e);
return false;
}
}
return true;
}
/**
* Checks if a fields value is within a range (min & max specified in
* the vars attribute).
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return True if in range, false otherwise.
*/
public static boolean validateIntRange(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
if (!GenericValidator.isBlankOrNull(value)) {
try {
String minVar =
Resources.getVarValue("min", field, validator, request, true);
String maxVar =
Resources.getVarValue("max", field, validator, request, true);
int min = Integer.parseInt(minVar);
int max = Integer.parseInt(maxVar);
int intValue = Integer.parseInt(value);
if (min > max) {
throw new IllegalArgumentException(sysmsgs.getMessage(
"invalid.range", minVar, maxVar));
}
if (!GenericValidator.isInRange(intValue, min, max)) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
}
} catch (Exception e) {
processFailure(errors, field, "intRange", e);
return false;
}
}
return true;
}
/**
* Checks if a fields value is within a range (min & max specified in
* the vars attribute).
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return True if in range, false otherwise.
*/
public static boolean validateDoubleRange(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
if (!GenericValidator.isBlankOrNull(value)) {
try {
String minVar =
Resources.getVarValue("min", field, validator, request, true);
String maxVar =
Resources.getVarValue("max", field, validator, request, true);
double doubleValue = Double.parseDouble(value);
double min = Double.parseDouble(minVar);
double max = Double.parseDouble(maxVar);
if (min > max) {
throw new IllegalArgumentException(sysmsgs.getMessage(
"invalid.range", minVar, maxVar));
}
if (!GenericValidator.isInRange(doubleValue, min, max)) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
}
} catch (Exception e) {
processFailure(errors, field, "doubleRange", e);
return false;
}
}
return true;
}
/**
* Checks if a fields value is within a range (min & max specified in
* the vars attribute).
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return True if in range, false otherwise.
*/
public static boolean validateFloatRange(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
if (!GenericValidator.isBlankOrNull(value)) {
try {
String minVar =
Resources.getVarValue("min", field, validator, request, true);
String maxVar =
Resources.getVarValue("max", field, validator, request, true);
float floatValue = Float.parseFloat(value);
float min = Float.parseFloat(minVar);
float max = Float.parseFloat(maxVar);
if (min > max) {
throw new IllegalArgumentException(sysmsgs.getMessage(
"invalid.range", minVar, maxVar));
}
if (!GenericValidator.isInRange(floatValue, min, max)) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
}
} catch (Exception e) {
processFailure(errors, field, "floatRange", e);
return false;
}
}
return true;
}
/**
* Checks if the field is a valid credit card number.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return true if valid, false otherwise.
*/
public static Object validateCreditCard(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
Object result = null;
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return Boolean.TRUE;
}
result = GenericTypeValidator.formatCreditCard(value);
if (result == null) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
}
return (result == null) ? Boolean.FALSE : result;
}
/**
* Checks if a field has a valid e-mail address.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return True if valid, false otherwise.
*/
public static boolean validateEmail(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
if (!GenericValidator.isBlankOrNull(value)
&& !GenericValidator.isEmail(value)) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
} else {
return true;
}
}
/**
* Checks if the field's length is less than or equal to the maximum
* value. A <code>Null</code> will be considered an error.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return True if stated conditions met.
*/
public static boolean validateMaxLength(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
if (value != null) {
try {
String maxVar =
Resources.getVarValue("maxlength", field, validator,
request, true);
int max = Integer.parseInt(maxVar);
boolean isValid = false;
String endLth = Resources.getVarValue("lineEndLength", field,
validator, request, false);
if (GenericValidator.isBlankOrNull(endLth)) {
isValid = GenericValidator.maxLength(value, max);
} else {
isValid = GenericValidator.maxLength(value, max,
Integer.parseInt(endLth));
}
if (!isValid) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
}
} catch (Exception e) {
processFailure(errors, field, "maxlength", e);
return false;
}
}
return true;
}
/**
* Checks if the field's length is greater than or equal to the minimum
* value. A <code>Null</code> will be considered an error.
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return True if stated conditions met.
*/
public static boolean validateMinLength(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
if (!GenericValidator.isBlankOrNull(value)) {
try {
String minVar =
Resources.getVarValue("minlength", field, validator,
request, true);
int min = Integer.parseInt(minVar);
boolean isValid = false;
String endLth = Resources.getVarValue("lineEndLength", field,
validator, request, false);
if (GenericValidator.isBlankOrNull(endLth)) {
isValid = GenericValidator.minLength(value, min);
} else {
isValid = GenericValidator.minLength(value, min,
Integer.parseInt(endLth));
}
if (!isValid) {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
}
} catch (Exception e) {
processFailure(errors, field, "minlength", e);
return false;
}
}
return true;
}
/**
* Checks if a field has a valid url. Four optional variables can be
* specified to configure url validation.
*
* <ul>
*
* <li>Variable <code>allow2slashes</code> can be set to <code>true</code>
* or <code>false</code> to control whether two slashes are allowed -
* default is <code>false</code> (i.e. two slashes are NOT allowed).</li>
*
* <li>Variable <code>nofragments</code> can be set to <code>true</code>
* or <code>false</code> to control whether fragments are allowed -
* default is <code>false</code> (i.e. fragments ARE allowed).</li>
*
* <li>Variable <code>allowallschemes</code> can be set to
* <code>true</code> or <code>false</code> to control if all schemes are
* allowed - default is <code>false</code> (i.e. all schemes are NOT
* allowed).</li>
*
* <li>Variable <code>schemes</code> can be set to a comma delimited list
* of valid schemes. This value is ignored if <code>allowallschemes</code>
* is set to <code>true</code>. Default schemes allowed are "http",
* "https" and "ftp" if this variable is not specified.</li>
*
* </ul>
*
* @param bean The bean validation is being performed on.
* @param va The <code>ValidatorAction</code> that is currently
* being performed.
* @param field The <code>Field</code> object associated with the
* current field being validated.
* @param errors The <code>ActionMessages</code> object to add errors
* to if any validation errors occur.
* @param validator The <code>Validator</code> instance, used to access
* other field values.
* @param request Current request object.
* @return True if valid, false otherwise.
*/
public static boolean validateUrl(Object bean, ValidatorAction va,
Field field, ActionMessages errors, Validator validator,
HttpServletRequest request) {
String value = null;
value = evaluateBean(bean, field);
if (GenericValidator.isBlankOrNull(value)) {
return true;
}
// Get the options and schemes Vars
String allowallschemesVar =
Resources.getVarValue("allowallschemes", field, validator, request,
false);
boolean allowallschemes = "true".equalsIgnoreCase(allowallschemesVar);
int options = allowallschemes ? UrlValidator.ALLOW_ALL_SCHEMES : 0;
String allow2slashesVar =
Resources.getVarValue("allow2slashes", field, validator, request,
false);
if ("true".equalsIgnoreCase(allow2slashesVar)) {
options += UrlValidator.ALLOW_2_SLASHES;
}
String nofragmentsVar =
Resources.getVarValue("nofragments", field, validator, request,
false);
if ("true".equalsIgnoreCase(nofragmentsVar)) {
options += UrlValidator.NO_FRAGMENTS;
}
String schemesVar =
allowallschemes ? null
: Resources.getVarValue("schemes", field,
validator, request, false);
// No options or schemes - use GenericValidator as default
if ((options == 0) && (schemesVar == null)) {
if (GenericValidator.isUrl(value)) {
return true;
} else {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
}
}
// Parse comma delimited list of schemes into a String[]
String[] schemes = null;
if (schemesVar != null) {
StringTokenizer st = new StringTokenizer(schemesVar, ",");
schemes = new String[st.countTokens()];
int i = 0;
while (st.hasMoreTokens()) {
schemes[i++] = st.nextToken().trim();
}
}
// Create UrlValidator and validate with options/schemes
UrlValidator urlValidator = new UrlValidator(schemes, options);
if (urlValidator.isValid(value)) {
return true;
} else {
errors.add(field.getKey(),
Resources.getActionMessage(validator, request, va, field));
return false;
}
}
/**
* Process a validation failure.
*/
private static void processFailure(ActionMessages errors, Field field,
String validator, Throwable t) {
// Log the error
String logErrorMsg =
sysmsgs.getMessage("validation.failed", validator,
field.getProperty(), t.toString());
log.error(logErrorMsg);
// Add general "system error" message to show to the user
String userErrorMsg = sysmsgs.getMessage("system.error");
errors.add(field.getKey(), new ActionMessage(userErrorMsg, false));
}
/**
* Return <code>true</code> if the specified object is a String or a
* <code>null</code> value.
*
* @param o Object to be tested
* @return The string value
*/
protected static boolean isString(Object o) {
return (o == null) ? true : String.class.isInstance(o);
}
}